X-Ray Diffraction Studies in the 100 Kilobar Pressure Range
- 1 March 1962
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 33 (3) , 776-780
- https://doi.org/10.1063/1.1777167
Abstract
A new technique using ``amorphous'' boron as a pressure vessel yields satisfactory Debye—Scherrer patterns for substances subjected to quasi‐hydrostatic pressures ranging up to at least 150 kbar. The pressure attained depends on sample size and its compressibility. In general, the pressure attained is higher for the more incompressible substances. The following substances have been used to test the apparatus: Fe, NaCl, KCl, AgCl, CaCO3, and NaNO3. Evidence for polymorphic transitions was found for all substances except NaCl. The changes in lattice spacings and the observed transformations are consistent with the transition pressures and volume decrements determined by Bridgman or by shock‐wave experiments in the case of Fe. The high‐pressure structures are tentatively identified.This publication has 11 references indexed in Scilit:
- High Pressure Electrical Resistance Cell, and Calibration Points above 100 KilobarsReview of Scientific Instruments, 1961
- Revised Calibration for High Pressure Optical BombReview of Scientific Instruments, 1961
- The effect of pressure on the absorption edge in silver halidesJournal of Physics and Chemistry of Solids, 1958
- Introductory Studies of High-Pressure Polymorphism to 24,000 Bars by X-Ray Diffraction with Some Comments on Calcite IIThe Journal of Geology, 1957
- Effect of Fast Neutron Bombardment on Physical Properties of Graphite: A Review of Early Work at the Metallurgical LaboratoryJournal of Applied Physics, 1956
- Polymorphism of Iron at High PressureJournal of Applied Physics, 1956
- The Compression of Twenty-One Halogen Compounds and Eleven Other Simple Substances to 100,000 kg/cmProceedings of the American Academy of Arts and Sciences, 1945
- The Compression of 46 Substances to 50,000 kg/cmProceedings of the American Academy of Arts and Sciences, 1940
- Polymorphic Transitions of 35 Substances to 50,000 Kg/CmProceedings of the American Academy of Arts and Sciences, 1937
- Crystal structure of the mercurous halidesAmerican Journal of Science, 1925